| Authentication is an important part in the network security, which allows each party to a communication to be sure of the identity of the other. This article makes a profound study on the principle and realization of the authentication method of PKI and analyses its security. With the development of the enterprise CAs, the existing trust fields need to be integrated, so how to process the trust path has been the main difficulty of it, this article puts forward a new scheme to process the trust path. Finally, an authentication system is constructed based on digital certificate and cryptography technology, and it can provide a better authentication than the non-cryptographic one which are currently used, and guarantees the Confidentiality, Integrity, Non-Repudiation of the information.Pan Juan(Computer Applied Technology) Directed by prof. Song Yu... |